Change-making machine



M. H. MANDELBAUM AND B. R.-WEBSTER.

. CHANGE MAKING MACHINE APPLICATION FILED MAR 4,1920.

.7 m Q 4 @J M. H. MANDELBAUM AND B, R. WEBSTER.

CHANGE MAKING MA'CHINE. APPucAn o HLEl) MAR 4,1920.

Patented May 3, 1921.

2 SHEETS-SHEET 2.

w v I jm/azvro" both the 25 and 50 cent changers.

omrso STATES PATENT OFFICE.

MAURICE n. MANDELBAUM, OF CHICAGO, AND BEsTER R. WEBSTER, 0F ELGIN,ILLI- NoIs, ASSIGNOBS, BY' DIRECT AND MESNE ASSIGNMENTS, To BRANDTCASHIER COMPANY, A ooRPoRATIoN OF ILLINOIS.

CHANGE-MAKING MACHINE.

7 Specification of Letters Patent.

Patented May 3, 192 1.

Application filed March 4, 1920. Serial No. 363,168.

of the United States, and residents of Chicago, in the county of Cookand State of Illinois, and Elgin, in the county of Kane and State ofIllinois, have invented certain new and useful Improvements in Change-Making Machines, of which the following is a specification.

Our invention relates to change making machines and particularly to anovel devlce having many improvements and advantages over thoseheretofore produced.

()ne of the objects of our invention is to provide simplified andimproved mechanism for accomplishing certain results necessary ordesirable in connection with a device of this kind. For instance, weprovide a dlstinctly novel and useful change deliverlng chute and trapdoor, the operation of which more nearly conforms to the motion of thehand of the person receiving the change. In our device the movement ofthe door is in the arc of a circle, the center of which 1s above theoutlet. Inasmuch as the person receiving the change usually stands abovethe machine, the motion of the hand is downward and our constructionaccommodates such movement.

Another advantage is in the form, construction and arrangement of thechanging mechanism; that is, the means employed for changing thefunction of the machlne to pay on the basis of 25 or 50 cents instead ofon the basis of a dollar. In our construction it is impossible toactuate both the changing devices at the same time; thaf fis,

1s avoids the possibility of error due to careless operation.

A further advantage is in the construction of the partitions which serveto divide the coin chutes. It has been found to be desirable to providemeans whereby to avoid tilting or wabbling of a coin as it is beingdischarged from the chute.- In our con structionthe 1 result isaccomplished by merely'pressing a fin or body of metal laterally from achute of relatively thin gage material. This simplifies manufacturingand materially reduces the cost.

A further advantage is in the construction and mounting of the so-calledequalizer bar for the key operated rock-ban In our'oonstruction we mountthis equalizer at the side of the machine and make it of such length asto have a bearing substantially midway of the length of the bars. Thus alongthrow is secured and more efficient equaliz-' ing action efiected.In the constructions with which we are acquainted the equalizer has beenmounted at a point intermediate the sides and a bearing on the centerof-the rock bars has been impracticable even by making the equalizer ofrelatively short length. This results in more orless of a twistingaction of the bars with consequent wear. 7

The. invention will be more readily understood by reference to theaccompanying drawlngs in which amachine of'the character described isillustrated. Inasmuch as such machines are well'known, only a generaldescription of the parts-will be given.

Figure 1 is a sectional view through a machlne constructed in accordancewith our inventlon; 1

Fig. 2 is a plan sectional view;

Fig. 3 is a detail on the "line 33 of Fig. 1; Y I

Fig. 4; is a sectional form of the partition which we prefer to employ,and,

Fig. 5 is a face view'thereof. 7

A. main frame 10 is provided and'the operating parts are suitablysecured in brackets mounted on saidframe. The-keys 11 are mounted forreciprocation between upper and lower key plates 12, 13, the latterdetail showing the supporting the retracting springs 14. The

- filed Jan. 19, 1920 to hold the U-shaped equalizer in raised positionagainst the rock-bars. The movement of the rock-bars serves to effectlongitudinal reciprocation of the pay-bars 26, to the outer ends ofwhich the pay-fingers 27 10.

are pivoted. The free ends of the members 26 are provided withanti-friction rOlleI's 28, which contact with the fioer 29 of themachine and efiect a horizontal movement of the member at that point.The pay-fingers 27 are each provided with a lateral eXten- 'sion 30, towhich a coiled spring 31 is secured, the tendency of the spring being toraise the finger into an elevated positlon.

A locking mechanism for detecting a shortage of coins within the chutemay consist of the bell crank pivoted at .82, and consisting of adetecting arm 33 and a look ing arm 34, the latter being adapted when inlowered position, to engage with a notch 35 in the extension 30 of thepay-finger. This locking mechanism is covered in a copendingapplication, Serial No. 352,285,

The changing mechanism of our invention comprises a pair of U-shapedmembers pivoted on a shaft 36, (Fig. 2) mounted in brackets 37, theforward end 38 of one of the U-shaped members overlying the centpay-finger while the forward end 39 of the other U-shaped memberoverlies the 25 cent pay-finger. Themeans for actuating these U-bars isbest shown in Figs. 1 and 3. This mechanism comprises a pair ofpush-keys 40, 41, held in raised. position on suitable springs andhaving stems pro-' vided with notches 42, '48- respectively.

Mounted with its ends in the notches 42, 43,

is a rocker 44, fixedly pivoted at 45. The size of the ends of therocker is such that there is considerable freedom of movement of the keystems or shanks relative to the .rocker but not sutlicient to permit ofthe locking of one key while the other is in depressed position.Inasmuch as the operating connections of the two keys with the U-bars isidentical a description of but one thereof will be given. At the lowerend of the key 41 is a notch 46, which engages a transverse bar 47,which spans the side members of the; U-bar. This cross member 47 isangularly arranged relative to the position of the U-bar and in thatposition there is a line bearing between it and the stem 41. A pawl 48,pivoted at 49 is arranged adjacent to each of the U-ba rs, the projec-U-bar and depressing the cross-member 47,

the latter will engage beneath the projection 50 and retain the bar inlowered position. When in this position the U-bar depresses therespective pay-finger, and upon actuation of any key which wouldotherwise effect an outward movement of the pay- Iinger, the latterwill. be in such position as not to engage a coin. However, as themember 26, which carries the pay-finger 27, is advanced, a pin 51thereon contacts with the pawl 48 and moves it from engagement with thecross-member 47, whereupon the parts return to their normal position.However, at that time thepay-finger has passed beneath a coin and thecoin will not be ejected. One of the keys 40, 41, effects a change to a50 cent basis and the other to a 25 cent basis of change making insteadof the normal dollar basis and it will be seen that this effect issecured only at each actuation, that is, it cannot be made topermanently pay on a 50 or 25 cent basis.

The partition construction for the coin tray is best shown in Figs. 4and 5, in which it will be seen that two sheet metal members 52, 53, areprovided these being suitably secured to a back plate 54. At the outeredge beginning at a point below the upper end thereof, the sheet metalis bent laterally and at the lower end inwardly, as indicated at 55. Inaddition the metal is cut transversely, as indicated at'56 in Fig. 1,and the metal is bulged or laterally deflected to provide a fin orprojection 57, the utility of which is best illustrated in Fig. 4. Asshown by that figure, this projecting section of metal overlies a coinas it is being discharged and guides the coin until it is well freed ofthe holder. This avoidsany wabbling or tilting ofthe coin and assuresthat it will not disarrange the remainder of the coins in the chute ineventthere are but few thereof still remaining.

The receptacle into which the coins are received and th slide forclosing the lower end thereof are'best shown in Fig. 1. The hopper 58may be of rectangular construction and be provided with an inclinedfloor 59, which converges to an outlet at the central portion thereof.This outlet is closed by an arcuate door 60, mounted upon an arm 61,pivoted at 62, at a point as high up as possible on the hopper. It willbe noted that p the arc of curvature of the door 60 is formed on aradius the center'of which is the pivot 62. A downwardly projecting web63 from the doorserves as a means for'engagement by the fingers of theperson receiving the change, the arrangement being such that as the handis thrust forward the fingers engage the weband oscillate the trap dooron its pivot. venient and naturalmeans for operatingthis element of thedevice. As shown in Fig.2, a

This serves as av verycon- -suitable spring 64 is hinged at the pivot ofthe door and serves to maintain the same in closed position.

It is obvious that modifications may be made in the construction shownand such modifications as are within the scope of our claims we considerwithin the spirit of our invention. Y

We claim:

1. In a device of the class described, the combination of a plurality ofrock-bars, paying mechanism actuated thereby, a U-shaped equalizerengaging the bars at a point midway of their length, and means forpivoting said equalizer at the side of the machine, substantially asdescribed.

2. In a device of the class described, the combination of a plurality ofrock-bars, an equalizer of generally U-shape pivoted at the side of thedevice and projecting inwardly, the transverse member of the equalizerengaging beneath the rock-bars at a point substantially exactly midwayof their length, and spring means for retaining the equalizer inposition against the under side of said rock-bars, substantially asdescribed.

8. In a device of the class described, the combination of pay-fingersfor coins of different denominations, bars 'for engaging each of twopay-fingers of coins of the two highest denominations, a key forselectively actuating said bars to render said fingers inoperative toengage a coin, and means to prevent the simultaneous actuation of bothof said bars, substantially as described.

, 4:. In a device of the class described, the combination of pay-fingersfor coins of dif- :Eerent denominations, bars for engaging each of twopay-fingers of coins of the two highest denominations, a key forselectively actuating said bars to render said fingers inoperative toengage a coin, and means cooperating with said keys to preventsimultaneous actuation thereof, substantially as described.

5. In a device of the class described, the combination of pay-fingersfor coins of different denominations, bars for engaging each of twopay-fingers of coins of the two highest denominations, a key forselectively actuating said bars to render said fingers inoperative toengage a coin, and a lever fulcrumed between and engaging said keys insuch manner as to prevent the simultaneous depression of both keys,substantially as described. I

6. In a coin-paying machine normally adapted to make change on a dollarbasis, the combination of pay-bars, pay-fingers secured to the endthereof, U-bars for engagin the fifty-cent and twenty-five centpayfingers to render the same inoperative, a key adapted to engage eachof said U-bars, a pawl for retaining the bars in finger-engagingposition, means preventing simultaneous actuation of said keys, andmeans operable by the advance of a pay-bar the finger. of which is heldin inoperative position for releasing said pawl and assuring normaloperation on the next stroke of the pay-finger, substantially asdescribed.

7 In a coin tray, the combination of partition walls composed of sheetmetal having an inturned and inbent marginal edge which terminates abovethe lower end of the partition, the metal adjacent the terminal point ofthe thus formed flange being deflected laterally above and contiguous tothe plane of travel of a discharged coin, substantially as described.

8. In a coin tray, the combination of partition walls composed of sheetmetal having a marginal flange which terminates above the lower end ofthe partition to provide a discharge notch, a triangular portion of themetal at the junction of the lower portion of the flange with thepartition wall being defiected to form an overhanging ledge to engage acoin as it is being discharged, substantially as described.

9. In a coin-paying device, the combination of a receiving hopper havinga dis charge outlet the bounding edges of which are of arcuate form, anarcuate closure for the outlet, and an upwardly extending arm connectedto the rear of the closure, said arm being pivoted to the hopper at apoint near the upper end thereof, substantially as described.

Signed at Chicago, Illinois, this 13th day of February, 1920.

MAURICE H. 'MANDELBAUM. BESTER R. WEBSTER.

Witness:

T. BUTLER.

